Figure 2.

Scores of posttraumatic stress symptoms during the first year. Due to missing items, 170 patients had a score at baseline and 12 months. Eighteen of these did not respond at three months (six missing in each of the groups delayed onset and resilience, sixteen missing in the group with persisting symptoms). The score at three months is used to indicate the course of symptoms. IES, Impact of Event Scale.

Myhren et al. Critical Care 2010 14:R14   doi:10.1186/cc8870
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